// yield/i18n/posix/tstring.cpp

// Copyright (c) 2011 Minor Gordon
// All rights reserved

// This source file is part of the Yield project.

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of the Yield project nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL Minor Gordon BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "yield/assert.hpp"
#include "yield/exception.hpp"
#include "yield/i18n/iconv.hpp"
#include "yield/i18n/tstring.hpp"

#include <errno.h>

namespace yield {
namespace i18n {
tstring::tstring(char s, Code code) {
  init(&s, 1, code);
}

tstring::tstring(const char* s, Code code) {
  init(s, strlen(s), code);
}

tstring::tstring(const string& s, Code code) {
  init(s.data(), s.size(), code);
}

tstring::tstring(const char* s, size_t len, Code code) {
  init(s, len, code);
}

string tstring::encode(Code tocode) const {
  if (tocode == Code::CHAR)
    return *this;
  else {
    string outbuf;
    iconv(tocode, Code::CHAR)(*this, outbuf);
    return outbuf;
  }
}

void tstring::init(const char* s, size_t len, Code code) {
  if (code == Code::CHAR)
    assign(s, len);
  else {
    if (!iconv(Code::CHAR, code)(string(s, len), *this))
      throw Exception();
  }
}
}
}
